Nintendo has announced the "Nintendo Wi-Fi Network Adapter" for the Nintendo Wii and the Nintendo DS. The adaptor will go on sale on September 18th in Japan for ¥5,800 ($53 USD) on Nintendo's homepage. This wireless LAN router can be used with the Nintendo Wii and DS as well as PCs and other devices.
The Nintendo Wi-Fi Network Adaptor has a switch for three modes on the back: "Router", "Bridge" and "Auto". The “Router” allows the device to act as a normal router while the "Bridge" setting connects to another router and then communicates with the Nintendo DS and Wii. "Auto" apparently can automatically switch the household's network over automatically.
Website GameCyte went in to an analysis of the “Nintendo Wi-Fi Network Adapter” summarizing what it can do and why Nintendo may have released it.
One of the features is One-touch, simultaneous WPA and WEP security for Wii and DS. After the latest firmware update, the Nintendo Wii and the Nintendo DS offer support for Buffalo Technology’s AirStation OneTouch Secure System, or AOSS. In combination with a Buffalo AOSS-enabled router, users of these and other AOSS devices would be able to press a single button to create a secure internet connection without entering passwords or changing network settings.
AOSS has another use; the ability to connect a Nintendo DS in a household that uses secure WPA encryption. It did so by forcing the entire connection down to the lowest-common-denominator WEP security for the duration of use.
The "Nintendo Wi-Fi Network Adapter" that Nintendo of Japan has announced today improves upon AOSS with a new feature they’re calling “Multisecurity”. When connected to the Nintendo Wi-Fi Network Adapter using AOSS, Nintendo says that Multisecurity allows both DS and Wii to run simultaneously using different encryption schemes. The DS will connect using a WEP key while the Nintendo Wii and other devices retain a secure WPA encryption.
Currently there are no plans to release the device in the United States.